. Find the 99% confidence interval of the mean. If a meteorolo- gist wanted to use the highest speed to predict the times it would take storms to travel across the state in order to issue warnings, what figure would she likely use? Assume the variable is normally distributed.

. Find the 99% confidence interval of the mean. If a meteorolo- gist wanted to use the highest speed to predict the times it would take storms to travel across the state in order to issue warnings, what figure would she likely use? Assume the variable is normally distributed.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 19PFA

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Question

100%

3. A meteorologist who sampled 13 thunderstorms found that
the average speed at which they traveled across a certain state was 15
miles per hour. The standard deviation of the sample was 1.7 miles per
hour. Find the 99% confidence interval of the mean. If a meteorolo-
gist wanted to use the highest speed to predict the times it would take
storms to travel across the state in order to issue warnings, what figure
would she likely use? Assume the variable is normally distributed.

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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